言いい古ふるす

godan verb (-su)

say repeatedly; say proverbially

Used when a phrase or saying has been repeated so often that it has become a cliché or a well-known proverb. Often implies the expression is now trite or hackneyed.

• 「時ときは金かねなり」は言いい古ふるされた言こと葉ばだ。

  "Time is money" is a hackneyed phrase.

• そんな言いい古ふるされた理り屈くつでは誰だれも納なっ得とくしない。

  Nobody will be convinced by such a worn-out argument.